The Keysight (Agilent HP) 3325A is a high-precision synthesized function generator and sweep generator with a frequency range extending up to 21 MHz for sine waves and 11 MHz for square waves, featuring fully programmable HP-IB controls and fractional-N synthesizer technology.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | HP-IB (GPIB) |
| Display | LED digital display (7-segment) |
| Instrument State Storage | 10 registers (0 to 9) for saving and recalling front panel setups |
Physical
| Parameter | Value |
|---|---|
| Operating Temperature | 0 to 55 °C |
Frequency Characteristics
| Parameter | Value |
|---|---|
| Sine Wave Frequency Range | 1 µHz to 21 MHz |
| Square Wave Frequency Range | 1 µHz to 11 MHz |
| Triangle Wave Frequency Range | 1 µHz to 11 kHz |
| Ramp Wave Frequency Range | 1 µHz to 11 kHz |
| Frequency Accuracy | ±5 × 10^-6 of setting per year (standard) |
Amplitude Characteristics
| Parameter | Value |
|---|---|
| Amplitude Range (Sine, 50 Ω Load) | 1.000 mVpp to 10.00 Vpp |
| Amplitude Range (Square, 50 Ω Load) | 1.000 mVpp to 10.00 Vpp |
| Output Units | Vpp, Vrms, dBm (sine only) |
| Output Impedance | 50 Ω |
DC Offset
| Parameter | Value |
|---|---|
| DC Offset Range (DC Only) | ±5 V (50 Ω load) |
| DC Offset Range (AC + DC) | Peak AC + DC must be ≤ 5 V (DC offset up to ±4.5 V) |
Waveform Quality & Spectral Purity
| Parameter | Value |
|---|---|
| Sine Wave Harmonic Distortion (0.1 Hz - 50 kHz) | < -65 dBc |
| Square Wave Rise/Fall Time | < 20 ns (10% to 90%) |
| Square Wave Overshoot | < 5% of peak-to-peak amplitude at full output |
Phase & Modulation Characteristics
| Parameter | Value |
|---|---|
| Phase Offset Control Range | ±719.9° (relative to arbitrary point or external 3325A) |
| Phase Offset Resolution | 0.1° |
Sweep Capabilities
| Parameter | Value |
|---|---|
| Sweep Type | Linear and Logarithmic |
| X-Drive Output Voltage | 0 to > 10 V DC ramp |
Auxiliary Inputs & Outputs
| Parameter | Value |
|---|---|
| Main Output Connector | Front panel BNC |
Option 002 (High Voltage Output)
| Parameter | Value |
|---|---|
| Option 002 Output Amplitude Range | 4.00 mV p-p to 40.00 V p-p (into ≥ 500 Ω, ≤ 500 pF load) |
| Option 002 Sine/Square Frequency Range | 1 µHz to 1 MHz |
Phase Modulation
| Parameter | Value |
|---|---|
| Phase Modulation Range | ±850° |
Sweep
| Parameter | Value |
|---|---|
| Sweep Continuity | Fully phase-continuous over the entire sweep range |
Frequency Reference
| Parameter | Value |
|---|---|
| Standard Reference Aging Rate | < ±5 × 10^-6 per year |
| Standard Reference Temperature Coefficient | < ±5 × 10^-6 over the range 0 to 55 °C |
Technology
Synthesizer / Function Generator
Applications
Test and Measurement